August weather forecast
Jerseyville, NJ

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Weather in August

The last month of the summer, August, is another warm month in Jerseyville, New Jersey, with an average temperature varying between 80.4°F (26.9°C) and 69.1°F (20.6°C).

Temperature

The beginning of August reveals an average high-temperature of a still moderately hot 80.4°F (26.9°C), showing minimal deviation from the previous month. The nighttime temperature dips to an agreeable 69.1°F (20.6°C) on average during August.

Humidity

The average relative humidity in August in Jerseyville, New Jersey, is 75%.

Rainfall

In Jerseyville, during August, the rain falls for 15.3 days and regularly aggregates up to 3.31" (84mm) of precipitation. Throughout the year, there are 162 rainfall days, and 32.2" (818mm) of precipitation is accumulated.

Snowfall

May through September are months without snowfall.

Daylight

In Jerseyville, the average length of the day in August is 13h and 43min.
On the first day of the month, sunrise is at 5:55 am and sunset at 8:10 pm. On the last day of August, sunrise is at 6:24 am and sunset at 7:29 pm EDT.

Sunshine

In August, the average sunshine in Jerseyville, New Jersey, is 10.6h.

UV index

June through August, with an average maximum UV index of 6, are months with the highest UV index in Jerseyville. A UV Index reading of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: An average maximum UV index of 6 in August leads to these recommendations:
Persist with precautions and heed sun safety advice. Prevention of sunburn is compulsory. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete protection. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
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Frequently asked questions

What is the temperature in August in Jerseyville?

Jerseyville in August has an average high-temperature of 80.4°F (26.9°C) and an average low-temperature of 69.1°F (20.6°C). In July, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which factors the actual air temperature with the relative humidity, is appraised at 87.8°F (31°C).

What is the average humidity in August in Jerseyville?

The average relative humidity in August in Jerseyville, New Jersey, is 75%.

How much does it rain in Jerseyville in August?

In August, in Jerseyville, the rain falls for 15.3 days. Throughout August, 3.31" (84mm) of precipitation is accumulated.

When it does not snow in Jerseyville?

In Jerseyville, New Jersey, snow does not fall in May through September.

How many hours of daylight does Jerseyville have in August?

In Jerseyville, New Jersey, the average day length in August is 13h and 43min.

What time are sunrise and sunset in August in Jerseyville?

In August, on the first day of the month, sunrise is at 5:55 am and sunset at 8:10 pm. On the last day of the month, in Jerseyville, sunrise is at 6:24 am and sunset at 7:29 pm EDT.

How many hours of sunshine does Jerseyville have in August?

The average sunshine duration in August is 10.6h.

What is the month with the highest UV index in Jerseyville?

The months with the highest UV index are June through August, with an average maximum UV index of 6.

How high is the UV index in August in Jerseyville?

The average daily maximum UV index in August is 6. A UV Index value of 6 to 7 symbolizes a high hazard to health from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in August
Jerseyville, NJ

Average temperature in August - Jerseyville, NJ
  • Average high temperature in August: 80.4°F

The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (37.9°F).

  • Average low temperature in August: 69.1°F

The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is January (27.3°F).

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Average pressure in August
Jerseyville, NJ

Average pressure in August - Jerseyville, NJ
  • Average pressure in August: 29.98"Hg

The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in August
Jerseyville, NJ

Average wind speed in August - Jerseyville, NJ
  • Average wind speed in August: 7.2mph

The windiest month (with the highest average wind speed) is January (11.1mph).
The calmest month (with the lowest average wind speed) is July (7.1mph).

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Average humidity in August
Jerseyville, NJ

Average humidity in August - Jerseyville, NJ
  • Average humidity in August: 75%

The months with the highest relative humidity are May and June (79%).
The months with the lowest relative humidity are January, March, April and November (74%).

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Average rainfall in August
Jerseyville, NJ

Average rainfall in August - Jerseyville, NJ
  • Average rainfall in August: 3.31"

The wettest month (with the highest rainfall) is July (3.58").
The driest month (with the least rainfall) is January (1.93").

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Average rainfall days in August
Jerseyville, NJ

Average rainfall days in August - Jerseyville, NJ
  • Average rainfall days in August: 15.3 days

The month with the highest number of rainy days is July (17.6 days).
The month with the least rainy days is November (9.2 days).

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Average snowfall in August
Jerseyville, NJ

Average snowfall in August - Jerseyville, NJ
  • Average snowfall in August: 0"

The month with the highest snowfall is March (1.46").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in August
Jerseyville, NJ

Average snowfall days in August - Jerseyville, NJ
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (5.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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Average daylight in August /
Average sunshine in August
Jerseyville, NJ

Average daylight in August / Average sunshine in August - Jerseyville, NJ
  • Average daylight in August: 13h and 4min

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in August: 10h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).

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Average sunshine days in August
Jerseyville, NJ

Average sunshine days in August - Jerseyville, NJ
  • Average sunshine days in August: 12.8 days

The month with the most sunshine days is November (18.9 days).
The month with the least sunshine days is July (11.3 days).

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Average UV index in August
Jerseyville, NJ

Average UV index in August - Jerseyville, NJ
  • Average UV index in August: 6

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).

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Average cloud cover in August
Jerseyville, NJ

Average cloud cover in August - Jerseyville, NJ
  • Average cloud cover in August: 28

The months with the most cloud cover are February, March and December (Cloud cover 46).
The months with the least cloud cover are July and August (Cloud cover 28).

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Average visibility in August
Jerseyville, NJ

Average visibility in August - Jerseyville, NJ
  • Average visibility in August: 6mi

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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Jerseyville, New Jersey, USA

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